The massive multiple-input multiple-output (MIMO) system has drawn increasing attention
recently as it is expected to boost the system throughput and result in lower costs. Previous …

Cell-Free (CF) massive multiple-input multiple-output (MIMO) system is a distributed
antenna system, wherein a large number of access points wish to simultaneously …

This paper proposes a unified transmission strategy for multiuser time division duplex
(TDD)/frequency division duplex (FDD) massive multiple-input-multiple-output (MIMO) …

Channel reciprocity in time-division duplexing (TDD) massive multiple-input multiple-output
(MIMO) systems can be exploited to reduce the overhead required for the acquisition of …

In this paper, we propose a relative channel estimation error (RCEE) metric, and derive
closed-form expressions for its expectation Exprcee and the achievable uplink rate holding …

We consider an uplink cell-free massive multiple-input multiple-output (MIMO) system, in
which the access points are connected to the central processing unit (CPU) through a …

Massive MIMO is expected to play a key role in coping with the predicted mobile-data traffic
explosion. Indeed, in combination with small cells and TDD operation, it promises large …

Due to its inherent ability in reducing hardware cost and power consumption while
maintaining high system capacity, hybrid precoding is deemed as one of the key …

To relieve the stress on channel estimation and decoding complexity in cell-free massive
multiple-input multiple-output (MIMO) systems, user grouping problem is investigated in this …

This paper investigates the joint power allocation and user association problem in multi-cell
Massive MIMO (multiple-input multiple-output) downlink (DL) systems. The target is to …